Peugeot 406 Coupé
The 406 Coupé was the first car that I did any type of sound deadening. I had no experience so I relied on what others would say would work.
I did some tests, saw the type of products that I should use and revisited some parts of the car later on to redo some parts with different materials.
The car was bought in 25 of January, 2006. It was traded in a dealership for the C6 with more than 255.000km on the clock.
Doors revisited
The doors were revisited to fix some rattling noises and add Dynaliner to the door and the door card.
Dynamat Extreme on the bonnet
Dynamat Extreme was applied to the bonnet. Now the engine noise only enters the car from the firewall and floor, places were deadening material was not applied yet.
Roof deadened and C pillars revisited
C pillars were revisited and the roof was deadened. Dynamat Extreme, Dynaliner and polyethylene foam were used. Parked on the airport I can only hear the jet engine noises thru the windows.
Finally the B pillars
The B pillars were finally deadened with Dynamat Extreme and Dynaliner 1/8"
A pillars revisited
Dynaliner and polyethylene low density foam were added to the A pillars on top of Dynamat Extreme that was applied before in an attempt to reduce wind noise.
C pillars and rear wing
Dynamat was applied in the C pillars. On the rear wing Dynamat was applied in the inner and outer skin as well as Brax eXvibration on the rear wing trim.
Boot floor and rear seats
Dynamat Extreme and Brax eXvibration was applied to the boot floor, sides and the floor under the rear seats.
Boot floor - Part I
After the LPG installation Dynamat Extreme was added to the boot floor. The area above the exhaust was hotter after the LPG installation, after applying Dynamat the heat was blocked.
Spare tire well
Brax eXvibration was applied on the spare tire well to avoid rattles and block some noise before the 406 Coupé was converted to run on LPG.
Front wheel well cover
Brax eXvibration was added to the wheel well covers in an effort to reduce the tyre roar.
Dash bits and pieces and A pillars
Brax eXvibration was applied to some bits and pieces of the dashboard and Dynamat Extreme was added to the A pillars.
Sound deadening videos of the 406 Coupé
Two videos trying to show the difference between a deadened panel and a panel with no treatment and the improvement on the sound system.
Boot lid
Dynamat Extreme was applied to the inner and outer skin of the boot lid and Brax eXvibration was applied to the boot lid cover.
Dynamat Extreme on the rear parcel shelf
The rear parcel shelf rattles a lot since I have upgraded the rear speakers. Dynamat Extreme was applied on the top and underside to block any vibrations and Brax eXvibration was applied to the rear parcel shelf cover.
Doors with Dynamat Extreme
Dynamat Extreme was added to the inner and outer door skin on the front doors. The outer door skin doesn't look pretty, but the results are amazing. The door now sounds like a bank vault when closing and not like a flimsy piece of tin.
Door cards with Brax eXvibration
Brax eXvibration is a viscous product that, when dry, can reduce the noise levels almost as much as some butyl mats. This was applied in the door cards.
The beginning of the sound deadening in the 406 Coupé
A quick presentation of the 406 Coupé and the reasons that led me to start the sound deadening. The speaker upgrade from the original JBL to Focal created some unwanted rattles on the rear parcel shelf.